In vivo exposure to high or low cortisol has biphasic effects on inflammatory response pathways of human monocytes.
In vivo exposure to high or low cortisol has biphasic effects on inflammatory response pathways of human monocytes.
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DOI：
10.1213/ane.0b013e3181875fb0
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发表时间：
2008-11
影响因子：
5.7
通讯作者：
Guyre PM
中科院分区：
文献类型：
--
作者：
Yeager MP;Pioli PA;Wardwell K;Beach ML;Martel P;Lee HK;Rassias AJ;Guyre PM
Recent studies demonstrate that glucocorticoids (GCs) have both supportive (stimulatory) and suppressive effects on immune responses, depending upon the GC concentration. Since some GC effects on inflammation are stimulatory, we hypothesized that acute in vivo GC depletion would decrease inflammatory responses of human monocytes. Monocytes were isolated from healthy volunteer participants before and after in vivo treatment with; 1) IV saline, 2) IV high dose hydrocortisone (8 μg · kg−1 · min−1) followed by oral hydrocortisone overnight, and 3) oral RU486 (200 mg at 0400 and 1600 h) to block the intracellular GC receptor and IV etomidate (1.5 mg · kg−1 · h−1) for 12 h to prevent compensatory adrenal cortisol synthesis. Plasma adrenocorticotropic hormone, plasma, and salivary cortisol were measured serially. Monocytes were tested for; 1) cytokine responses, 2) expression of CD163, CD119, and CD54, and 3) mRNA levels of GC-responsive inflammatory mediators. All measurements were made with and without in vitro stimulation of monocytes by lipopolysaccharide. Cortisol and adrenocorticotropic hormone measurements demonstrated effective manipulation of in vivo cortisol. In vivo hypercortisolemia and in vivo GC depletion had reciprocal effects on monocyte mRNA levels of 4 important GC-responsive molecules: 1) GC receptor, CD163, interleukin-10, and suppressor of the cytokine synthesis-3. Monocyte cytokine responses and protein expression were not affected by GC depletion. CD163 expression was increased by hypercortisolemia. Short-term GC depletion affects mRNA levels of GC-responsive molecules but does not affect monocyte protein expression or cytokine responses.
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影响因子：
2.7
作者：
BURNSTEIN, KL;BELLINGHAM, DL;CIDLOWSKI, JA
通讯作者：
CIDLOWSKI, JA
DOI：
10.1046/j.1432-1327.2000.01395.x
发表时间：
2000-10-01
期刊：
EUROPEAN JOURNAL OF BIOCHEMISTRY
影响因子：
--
作者：
Paul, C;Seiliez, I;Le Cam, A
通讯作者：
Le Cam, A
影响因子：
4
作者：
Petrovsky, N;Socha, L;Bucala, R
通讯作者：
Bucala, R
影响因子：
8.8
作者：
Larsen, B;Hoff, G;Bauer, M
通讯作者：
Bauer, M
影响因子：
8.8
作者：
Loop, T;Liu, ZH;Pannen, BHJ
通讯作者：
Pannen, BHJ